Independent test NiMH and NiCd batteries and how to choose the right one07. 05. 2012
Are you interested in batteries that are worth buying and which are not? We tested them and prepared for you by an independent test of NiMH and NiCd batteries into the airsoft guns. In this test, you will learn how the battery has passed ...
|VB Large 8,4V/4600mAh||VB Mini 9,6V/1600mAh|
|FireFox Large 8,4V/4000mAh||GP Large 8,4V/3700mAh|
|FireFox Mini 9,6V/1500mAh||VB M15/M4 9,6V/2000mAh|
|VB Large 8,4V/2000mAh||FireFox M15/M4 9,6V/2000mAh|
|FireFox Large 8,4V/2000mAh||APS 9,6V/800mAh|
|KAN Mini 9,6V/1250mAh||Sanyo 9,6V/1700mAh|
|KAN AK 8,4V/1250mAh||PTW M16 12V/2400mAh|
|GP AK 8,4V/2000mAh||X-Cell Large 9,6V/4300mAh|
Test of methodology
Each of the test batteries gone through three charging and discharging cycles. That's because the new battery is correctly formatted and thus provide the best results. Battery testing conducted on the high-end model dual-channel charger with balancer Graupner Ultra Duo plus 50. For each measuring, we carefully observed the results and the data are then converted into tables and graphs. The method of averaging the results we have achieved see. the table below.
|Charging the battery VB Mini 9.6V/1600mAh|
|Battery discharge VB Large 8.4V/2000mAh|
The measured values
1. A method of termination charging / discharging
At the end of the process mean that, as the charging / discharging is finished.
End of charging process, referred to as the Delta Peak and therefore should understand that at the end of charging the battery, the voltage drop, which is a sign of full charge. In the event that we have to set the correct charger Delta Peak, the process is terminated at the right time. , If it is set small Delta Peak and the process may terminate prematurely if the contrary is high, so the battery can be overcharged and thus damaged.
2. The capacity of the battery
Indicates the amount of electrical charge that is able to accommodate the battery. The unit is mAh (milliamp-hours), so the battery capacity e.g. 2000mAh can deliver a current of 100 mA for 20 hours. The capacity of each cell and thereby the battery gradually decreases with age.
3. Voltage Battery
Electric voltage is determined as the work done by electrical forces during the movement of the positive unit of electrical charge between two points in space. The voltage can also be expressed as the difference in electrical potential between two points in space.
4.Impedance / resistor pack
Here is a fact that the lower the better, and source hard. Battery with low internal resistance provides longer operation, which delivers full power without significant voltage drop. And precisely this need our airsoft guns.
5. The temperature of the battery
Operating temperature range is the temperature range in which the batteries can be used. At this point it should be emphasized that it is important to differentiate temperature range allowed for charging, discharging and storage batteries. The temperature range allowed for battery charging is the smallest and usually varies for different methods of charging. This ranking temperatures specified by the manufacturer.
Now we will show you the results of the test. The following charts and tables show the results of all tested batteries. Data are averaged result values which are measured.
|Table of measurement results|
|This chart describes the percentage increase / decrease compared to the actual capacity stated by the manufacturer. A higher value is better.|
|This chart describes the internal resistance of the battery. The lower value is better.|
|This chart describes how much mAh can be purchased for CZK 1. A higher value is better.|
A few words in conclusion
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